When nixos is used inside a /nix/store, the store path is replace by /etc/nixos/nixos which is the default location of nixos.
When nixos is used inside a /nix/store, the store path is replace by
/etc/nixos/nixos which is the default location of nixos.

git-svn-id: 71c8032c709790ec749031c4215f8515ac00dc5a@17681 70bd8c7a-acb8-0310-9f0d-9cc1c95dcdbb

bnordgren/nixos,bnordgren/nixos,bnordgren/nixos,bnordgren/nixos,bnordgren/nixos